-
occipital bone,
which is
greatly enlarged in humans. The
paired opisthotics (singular:
opisthotic) form most of the rear
lateral part of the braincase, in front...
-
semicircular canal, and
medial wall of the
tympanic cavity. A
second (
opisthotic)
appears at the
promontory on the
medial wall of the
tympanic cavity and...
-
entire opisthotic is only 38 mm long. It is also
compressed anteroposteriorly,
giving it a
flattened shape. The
medial portion of the
opisthotic is also...
- dinosaurs, the
exoccipitals are
fused to the
opisthotic,
forming a
structure also
known as the exoccipital-
opisthotic. Below, the
exoccipitals are
fused to the...
- Liston, J.; Evans, M. (2003). "The
first relatively complete exoccipital-
opisthotic from the
braincase of the
Callovian pliosaur, Liopleurodon" (PDF). Geological...
-
which aid in
extension and
flexion of the head and neck. Likewise, the
opisthotic process,
neural spines, and
zygapophyses all
appeared to have been large...
- high
occipital condyle;
occipital condyle not
visible in
dorsal view;
opisthotic extends lateroventrally as a
curved process;
mandible is deep with a convex...
- denticles,
located on the
palatine and pterygoid,
articulation between the
opisthotic bone and the
tabular bones on the
posterior surface of the skull, the...
- supraoccipital,
which in
Bajadasaurus was
completely fused to the exoccipital-
opisthotic bone
below and
featured a
distinct and
narrow longitudinal ridge, the...
- semi-circular
canals are flat,
probably because they were
wedged between the
opisthotic (an
inner ear bone) and
supraoccipital bones. Like many mammals, gorgonopsians...
